12968540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1$

素因数の和:1662

約数の個数: 48

約数和(自身を含む): 30293760

約数和(自身を除く): 17325220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1609, 1612, 2015, 3218, 4030, 6436, 8045, 8060, 16090, 20917, 32180, 41834, 49879, 83668, 99758, 104585, 199516, 209170, 249395, 418340, 498790, 648427, 997580, 1296854, 2593708, 3242135, 6484270, 12968540]

約数ペア:

[(1, 12968540), (2, 6484270), (4, 3242135), (5, 2593708), (10, 1296854), (13, 997580), (20, 648427), (26, 498790), (31, 418340), (52, 249395), (62, 209170), (65, 199516), (124, 104585), (130, 99758), (155, 83668), (260, 49879), (310, 41834), (403, 32180), (620, 20917), (806, 16090), (1609, 8060), (1612, 8045), (2015, 6436), (3218, 4030)]